Water and EC management

摘要

This article has highlighted the thought process for optimum root zone steering over a 24-hour period in line with the 6-Phase model. It highlights the need for a substrate that can re-saturate quickly and at the same time offers good EC replacement and refreshment. There are many ways to set up the ideal approach in the climate computer - the previous tables are only intended as examples. Whatever approach you take, make standardized graphics (WC, EC global radiation) on the climate computer. Thesewill provide you with the right management information on which you can base your decisions. Focus in over one or two days to see the detail, focus out over seven or 10 days to see the trends. Look for the key triggers in the decision-making process should changes be required: Transpiration then irrigation. Drainby400J/cm2Or600W/m2. First drain of the day in line with EC refreshment. EC refreshed and stable in line with global radiation during peak solar hours. Applied irrigation in line with radiationsum 3 ml/J in the afternoon to ensure WC remains stable and EC under control. Stop in relation to plant activity for a stable decrease in WC overnight.